>>> On Tue, Apr 10, 2007 at 11:39 AM, in message <[EMAIL PROTECTED]>,
Gregory Haskins wrote:
> We could change the API to handle the pending condition as a tri-level
I just thought of a better way. Leave the return value as a boolean, but use
the concept of the mask_reasons. It simplifies the logic, and allows the
irqdevice to register for additional VMEXITs regardless of whether its
currently injecting something or not. So we have:
spin_lock(vcpu- >irq_lock)
vcpu->exit_reasons = 0;
nmi = !irq_window_open(vcpu)
if (vcpu- >irq- >pending(nmi, &mask_reasons))
inject(vcpu, vcpu- >irq- >read_vector(nmi))
if (mask_reasons) {
if (mask_reasons & MASKREASON_TPR)
vcpu->exit_reasons &= TPR;
/* etc */
}
spin_unlock(vcpu- >irq_lock)
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